import gradio as gr



def scrape(instring):
    html_src=(f'''
    <div style="text-align:center">
    <h4>Pdf viewer testing</h4>
    <iframe src="https://docs.google.com/viewer?url={instring}&embedded=true" frameborder="0" height="1200px" width="100%"></iframe>
    </div>''')
    return gr.HTML.update(f'''{html_src}''')



with gr.Blocks() as app:
    inp=gr.Textbox()
    go_btn = gr.Button()
    outp = gr.HTML()
    go_btn.click(scrape,inp,outp)
app.queue(concurrency_count=10).launch()